wolfgang ernest sch



` UMTEDs'rArEs PATENTf-oF-io-E-g .WOLFGNG 'ERNEST SCHWARZMANN, or srmnerinrn, MASSACHUSETTS, Assieiion,v

, vented certain new '.Befwit known that '.BY MESNE ASSIGNMENTS, T0

YORK, N. Y., ALCORPORATION OF NEW YORK. v

To all-whom, it 'may concern;

I, WoLrGAnG E. SoHwA'nzMANN, acitizenv of the, United States, residing at l5l Bellclaire avenue, LongMeadow, Springfield, in the county of Hampden, State of Massachusetts, have inand useful Improvements `ini-Distributing Mechanism for Magnetos;

and I do hereby declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled iinthe art to which -it appertains to and use the same.

The present invention relates to distributfor magnetos associated combustion engines for igniwith. 'nternal I tion of the combustible mixtures therein, and

more speciically relates to the electricalconnecting means for the terminal'or terminal -of the secondary winding of a high tension type which has a stamounted on vthe magneto of the sleeve tionary generatmg winding armature and a magnetic sleeve rotatable in permit the-use of an independent secondary `winding sulated terminals for producing simultaneseries;

theair gap between the armature and ield ina et. i

'In the sleeve type of magneto, it was customaryheretofore to extend the connections for the terminals of the primary and sec' ondarywindings on .the armature through a hollow shaft of the sleeve. lThose conarranged, and thus insulation which, upon failure in service, short circuits all or a large part of the generating winding. -Furtliermore, the

construction requires a larger size of hollow shaft and in other"ways interferes with the 'most desirable gform of parts of the magneto.

Moreover, this construction does not readily with connections to its two inous sparks' at two spark plugs' in electrical .In accordance with myl invention, these ldifficulties are removed in arrangements for two spark ignition as 'well as .single spark,

the magneto producing-four or any other number of ignition currents in the stationary armature winding per rotation and the distributer, where use, being commake of the sleeve nrs'rninu'rme MECHANISM ronnaimros.

' bined with the magneto or' separatethere-.-`

from, as desired. rlhese results are attained in the preferred forms'of construction disclosed hereinafter, by providingin associa.- j

tioniwith the sleeve for rotation therewith,

magneto of this kind for single spark ignition, the single- AMERICAN BOSCH 'MAGNETO CORPORATION, OF NEW spcification of Letten- Patent. Patented Oct. 21, 1919. appiication ineisepteiter 27, i918. seriai'ml 255,991.

- one or two ybrushes adapted to simultanebrush carried by the rotatable sleeve is elec-4 rically connected to' a continuous .collector 'segment or ring, with which engages a stationary collector brushI electrically connected to the'rotatable brush of `a single distributer.

for a multi-cylinder engine; and in the case of two spark ignition, the two -brushes carried by the rotatable sleeve to engage the two segments of the two insulated terminals of the secondary windings, are individually connected to two collector segments, 'stationary brushes, mounted for simultaneous engagement with the segments', are individually connected to two rotatable-brushes of a twin distributer for the engine. In this way, 'the connection from the mechanical interrupter to the insulated terminal of the primary winding extends through the hollow one end of the magneto, tion or connections to the secondary wind ving are broughtout at the other end of the armature, vthereby separating the high and low tension connections and readily 'adapting the constructionto two spark ignition,

In the accompanying drawings illustrating these preferred embodiments of the invention for one and two spark ignition systems, wherein, as an example, the magneto for an 8cylinde`,r

distributer is=coinbined with themagneto, Figure .1 is Va central vertical'section of the magnetoand distributer` for single spark ignition; Fig. 2 is a section on linel 2-"92 of Fig. l; Fig. 3 is a central vertical section of the apparatus for two spark ignition; Fig. 4 is a section on 5 is an end view of the stationary segments and twoshaft of the sleeve at whereas :the connecto which `the two insulatedv terminalsof the secondary winding ofFig.r 32h10. l'esp'ec'- tively connected 'g' and Fig; `6- is a sect-ion' on lineGGot'FgnS./

The'iiia'giieto is ofthe Well known sleeve type, hai'ingtlie 'bipolar fieldmagnets '1, the stationary bipolar armatiiieZv with theprimary wind-ing 3 and secondary winding 4 mounted thereon, and the magnetic sleete 5 `iotatable in the air gap 'between the poles ot the armature and' field'- tol..

produce four ignition currents per rotation in the secondar f Winding." rl"lie sleeve is mounted'l in tliezbearings 6, and .the armature is carried in gthe bearings supported by the sleeve, 'but is held against rotation therewith by a rigid fastening (not shown) between the hollow armature shaft S and a stationary part' of the magneto located beyond the endy of tlieholloyv shaft 9 'ofthe sleeve. The' electrical connection between the insulated element ofthe mechanical in` terupter not shown) andthe'insulated terminal ot the primary Winding 3 is made. by the insulated Wire 10 extending tlir ugh the stationaryv holloiy vshaft 8. The sl vej is 'driven trom the engine at crank shaft speed by the gear 11 and iiiturnv drivesthe.

distributerat cam shaft speed through the,

1 :2 speed .reducing gearing comprising' the g pinionv .12 fast with the sleeie and the gear 13 fast with the rotatable member of the distributer.

In the embodiment fsl'ioivn in Figs. land 2 for single spark igi'iition," one terminal-of the secondary7 Winding is connected to the terminal of tliejjpriinary `tviiidiiig"3.and

Way. The other terminal of-tliesecoiid'ary Winding is connected by the `Wire 11 t0 the continuous segment or slip ring l15 mounted therethrough to ground inthe Well known in the insulating.material 16 fast'iyith the stationary armature 2. A Isinglebrush 1T is mount-ed. in an insulating tube 1S Afast ivi-th' the rotatable sleeve 5, and lcontinuously engages the segment' 15. This brush l" is electrically connected to tlie" coiitiiiuoiis collector segment or slip ring 19, by means.l of

the. WireQO, the grooved insulating material Q1, carrying the collector segment, being integral with the insulating tube 18. A stationary collector brushlQQis carried by the-J `brush holder 23 inengageiiieiit with the co'l lector segment 19, and is electrically connected through the brush :2i and rodQ to the distributer brush 26 fast vyith the dis' tributer gear 13. The distributei" brush is' arranged to engagethe spark-plug distrib?` contacts being connected in a1 We'll "known irai' to the individual spark` plugs ,of the engine. 5 In this embodiment-for single spark ig;

nition` the ignition current produced in the" secondaryY ivindingiat each of the four ignition periods per rotation is `'conducted' from each other and connected by the wires :29 to respective"teifininals of the independentl secondary ivindingfet. fAl-so t-lie single brush? 1T of the first 5 embodiment is replacedby-` 85 'from lthe insulated terminal of the secbndary winding to Va spark-plug distributing contact 27 by the electrical` connection com;

prisingl the ivirelet,y segment 175, brush l17, ivire 20', c'ollect'oi"` segment 19,'br'ushes and *'70 24, rod' and distributer-brush 26,' thus "producing a spark at'the spaik-plugecon;

nected to that contact. lAtt the successive ignition periods, the ignition currents' are 'conducted through the distribu'ter contactsj in. tu'riito the spai{pliigs of 'the other# cylinders `ii`i their selected order of tiring.`

In the embodiment for two spark ignitioiifshoii'n iii Figs; 3 to 6, `the continuous;

Segment 15 offtlie'fi'rst eiiibodimentfis re- 80 placed" 'by the twok segments:28,: insulated the tivo diametrically disposed briishes'-30.2'- arranged'to 'siiiiulta'iiepusly engage the 'segl ments 28.-.as they rdtativith the sleeve 5L? These' brushes yare connected by the wires 31 to the 'respective collector segments 32, which 90 are diametricallv disposed and insulated from eachy other inthe insulating `iiie'mber The 'single collector brush .'22 of, the rst, embodiment is replaced bythe tivo dianietrically disposed collector brushesg. 35,

which are vmounted in the stationar,v brush holders 36 so'as` to simultaneoi'isly engage the rotating collector segments The collector' brush 34; is connected to tlierotatable A distribu'tcr.brush''fof the'tiiiin'distributer -100 by vthe conductor 38,' Contact 39,12conductor,

10, brush 41` a-nd rod 42'; VWhereas thevotlierv collector brush is connected to -the'otlier f distributer brush-43l by fthe conductor 44e,

.-contact45', 'conductor 46 and .outside-.wireio v 17,5 The t'ivo series of sparkpl-ufrfdistribut-1i,

ling, 'cont-acts 4S,- and 49 'of thetivindistributer are arranged to simultaneously:engage the' respective distributer brushes 37, 13, and y are electrically connected by vthe xvii-es' 50, l110 a.

Vrotation of the, sleeve 5 of'tliis second .ein- 115 the'adjacent spark-plug:distributingcon..'

sparks are produced [simultaneously at the tivo spark-'plugsconnected tlieretoblyv the Wires 50 and 5 1.- At lsuccessive ,ignitifin periods, sparks are produced simultaneously at thc sparkplugsvof each other cylinders in their selected Orde'rof firing.

Having thus described my inventionayjiiat 1.- Iiifdistributiiig inechanisinfoi': a magneto of the sleeve type having a vsta-tiona-if'y arinaturevaiid a rotatableinagneticsleeve,

Lerares primary and secondary windings mounted lon the armature,'an electrical connection extending from the primary winding to a point outside of the armature at one end.

thereof, a rotatable collector segmentA carn ried by the sleeve at the other end of the armature, an electrical connection between the secondary winding and the collector segment, and a collector brush mounted for enings mounted on the armature, an electrical i connection extending from the primary winding to a point outside of the armature at one end thereof, two collector segments i carried by the sleeve at the other end of the armature, independent. electrical connections extending between the two terminals of the' secondary winding and the collector segments, and a pair of collector brushes mounted for engagement with the segments.

3. In distributing mechanism for a niagneto of the sleeve type having a stationary .armature and a rotatable magnetic sleeve,

primary and secondary windings mounted on the armature, a hollow shaft supporting the sleeve at one end of the armature, an electrical connection extending from the primary winding through said shaft, a collector segment carried by the sleeve at the other end of the armature, and electrical connection between the secondary winding and the collector segment, and a 'collector brush' mounted for engagement with the segment.

4. ln distributing mechanism for a niagneto of the sleeve type having a stationary armature and. a rotatable magnetic. sleeve, independent primary and secondary wind ings mounted on the armature, a hollow shaft supporting the sleeve at one end of the armature, an electrical connection extending from the primary winding through said shaft, two collector segments carried by the sleeve at tl e other end of the armature, independent electrical connections extending between the two terminals of the secondary winding and the collector segments, and a pair of collector brushes mounted for engagement with the segments.

5. ln distributing mechanism for a mag- .neto of the sleeve type having a stationary armature anda rotatable magnetic sleeve,A

primary and secondary windings mounted on the armature, an electrical connection extending from the primary winding to a point outside of the armature at one end thereof, a distributer driven by the sleeve and arranged at that end of the armature, a collector segment carried by the sleeve at the other end of the armature, an electrical conection between the secondard winding and the collector segment, a collector brush mounted for engagementwith the segment,

and an electrical connection extending from one end of the armature to the other to connect the collector brush and distributor.

G. 1n distributing mechanism for a mag.` neto of the sleeve type 'having a stationary armature and a rotatable magnetic sleeve,

independent primary and secondary wind# ings mounted on the armature, an electrical connection extending from the primary winding te a point outside of the armature at one .end thereof, a twin distributor arranged at that end of the armature and having a pair of distributor brushes driven by the sleeve, a upair ofcollector segments,` carried by the sleeve at the other end of the armature, independent electrical connections between the terminals of the secondary winding and the collector segments, a pair of collector brushes mounted for simultaneous engagement with the collector segments, and independent electrical comico-- tions extending from one e'nd of the armature to the other to connect the collector brushes with the distributer brushes.

7. In distributing mechanism for a magneto of the sleeve type having a statipinary armature and a rotatable magnetic sleeve; primary and secondary windings mounted on the armature; an electrical connection eX- Y tending from the primary winding to a point outside of the armature at. one end thereof; an electrical connection extending from the secondary winding at the other end of the armatureand comprising a stationary segment connected to the secondary winding, a brush carried by the sleeve for engagement with said segment, and a collector segment electrically connected to said brushv and carried by said sleeve; and a stationary collector brush mounted for engagement with the collector segment.

8. In distributing mechanism for a niagneto of the sleeve type having a stationary armature and a rotatable magnetic sleeve; independent primary and secondary windings mounted on the armature; an electrical connection extending from the primary winding to a point outside of thearmature lat one end thereof; independent electrical connections extending from the secondary winding at the other end .of the armature and comprising a pair of stationar f segments connected to the respective terminals of the secondary winding, a pair of brushes carried by `the sleeve for .simultaneous engagement with said segments, and a pair of collector segments electrically `connected to said brushes respectively and carried by said sleeve; and a stationary pair of collector.

brushes mounted. for engagement with the collector segments.

9. In distributing mechanism: for a magneto of the sleeve vltype having a stationary armature and a rotatable magnetic sleeve; primary and secondary windings mounted on the armature; a hollow shaft supporting the sleeve at one end of the armature; a distributer driven by the sleeve and arranged at that end of the armature;- an electrical Connection extending from the primary Winding through said sliat't; an electrical connection extending;- troni the secondary Winding at the other end e'tthe armature and comprising av stationary C ment connected to the secondary Winding, a brush carried by the sleeve .tor engagement with said segment, and a collector segment electrically connected to said brush and carried by said sleeve; a stationary collector brush mounted for engagement with the' collector seg-ment; and an electrical com lnection extendingl'roin one end ot' the armaw ture to Vthe other to connect the collector brush and the distributer.

10. ln (iistributing mechanism for a magneto of the sleeve type having a stationary armature and a rotatable magnetic sleeye;

lindependent primary and secondary Windings mounted on the armature; a hollow shaft supporting the sleeve at one cud ot the armature; aJ 'twin distributer haring a pair of distributer brushes driven ley thel sleeve and arranged at that end of the arma ture; an electrical connection extending from .the primary u'ii'iding through said shaiitiindependent electrical connections en tending,` 'from the secondary Winding at thc other end of the armature and comprising' a pair of' I stationary segments connected to the respectivev terminals of the secondary Windingj7 a pair' of brushes lcarried bythe sleeve for simultaneous engagement with said segments, and a pair ot' collector segments electrically connected to said brushes respectively and carried by said sleeve; a stationary pair of collector brushes'mounted tor siumltaneous engagement with the collector segments; and independent electrical connections ext-ending; from enc end oi' the armature to the other to connect the respectiye collector and distributer brushes l'n testimony whereof l atlix my signature.

Wamel NG ERNEST SCHWARZMANR. 

